package com.kaifamiao.question;

public class Moon {

    public static Moon c = new Moon();
    public static int a ;
    public static int b = 0;

    public Moon(){
        a++;
        b++;
    }

    public static void main(String[] args) {
        System.out.println( Moon.a ); // 1
        System.out.println( Moon.b ); // 0
    }

}
